11040044020 has 12 divisors (see below), whose sum is σ = 23184092484. Its totient is φ = 4416017600.

The previous prime is 11040044011. The next prime is 11040044021. The reversal of 11040044020 is 2044004011.

It can be written as a sum of positive squares in 2 ways, for example, as 8572537744 + 2467506276 = 92588^2 + 49674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11040043985 and 11040044003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11040044021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276001081 + ... + 276001120.

It is an arithmetic number, because the mean of its divisors is an integer number (1932007707).

Almost surely, 2^11040044020 is an apocalyptic number.

11040044020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11040044020 is an abundant number, since it is smaller than the sum of its proper divisors (12144048464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11040044020 is a wasteful number, since it uses less digits than its factorization.

11040044020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552002210 (or 552002208 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 11040044020 its reverse (2044004011), we get a palindrome (13084048031).

The spelling of 11040044020 in words is "eleven billion, forty million, forty-four thousand, twenty".